My 300ZX has fallen into this category, although it's been parked on the side of a house, under a carport and in a driveway. But for the last few months, as sat on a piece of lawn/field. Wasn't by choice, was necessity.
My issue was having to move and was working toward enlisting in the Air Force. That didn't pan out, so I've been stuck with things in a storage unit, at my fathers place and my 300ZX parked where I could get it "out of the way".
Just elaborating that some people may have a lump of junk in their yard for a myriad of reasons. I wouldn't let my 300ZX waste away in my own front yard though, so perhaps my example doesn't apply here. Lol